Radio coupler construction



1,511,127 c. HERMANN RADI L" COUPLER CONSTRUCTI ON Filed Sept. 19. 1923 W/TIVESSES INVENTO? AHORA/frs .Patented Oct. 7, i924.

UNITED ysrimrss CHARLES HERMANN, OF BINGHAMTON, vNEW YORK.

RADIO COUPLER CONSTRUCTION..

Application filed September #o all 'whom z't may concern:

Be it known that I, Cantante HERMANN,

a subject of the King of Rumania, and a resident of Binghamton, in the county of 6 Broome and State of New York, have in vented a new and Improved' Radio Coupler Construction, of which the following is a full, clear, and exact description.

Thisinvention relates to a radio coupler l construction, and an object of the invention is to provide a coupler construction in which one or more switches connected to the various tapped coils of the coupler can be operated by the manipulation of a single knob 16 associated with a shaft, so that the manipulation of this single knob cannot only effect the adjustment of the switches but also the rotor of the coupler.

Another object concerns the provision of' W means whereby the operation of a multiplicity of switches back of the panelboard is not only effected by the manipulation of a single element but the design of the apparatus is so arranged that a minimum ot'.

space, both in front and back of the panel` board is occupied by the various parts.

The invention is illustrated in the draw imrs, of whichrigure l. is a side view of the apparatus; Fig. 2 is a plan View;

Fig. 3 is a section through the knob and operating sleeves and shafts; and

Fig. 4 is a detail elevation of one of the sleeves. Wim.,

In operating ,radio sets in which couplers are used Ywitlrtapped coils, it has been generally necessary tov provide connections from the various taps to the front of the panelboard to Contact pieees,'and to have a set of these contacts 11nd a. switch for each coil, this necessitating not only the laborious ef fort of making the proper coimecions and soldering the connections, but it also required a multiplicity of apparatus which occupied a considerable space on the board and, therefore, required much larger panelboards than might otherwise have been the case. Therefore, I have endeavored to overcome this dilticulty trvprovidinfr a )lurality of slvei es mounted on the shaft oli a rotor of the coupler. These sleeves are associated with the shaft and with a slidable knob disnosed in trout of the panelboard, and the sleeves. Ashafts and knob are provided with clutch elements s o tat the. moatrnent c" 19, 1923. Serial No. 663,808.

e engagement either one'of the sleeves, so that the rotation of the knob in its selective position will operate either the rotor of .the coupler or switch .members engaging with the taps on the variouscolls ot the couple-r. this single knob, position to another on a single shaft, canY selectively of devices, panelboard single knob operating one element. In View of these facts it will be apparent, that a considerable advance has been made in the multiple operation of a plurality of couplerelements by a single knob, not only saving time and space on a pa-nelboaid but making the operation ofthe system considerably simpler, so that the system can be tuned quicker by one familiar with the operation.

As shown in the'drawings, the invention comprises the usual shell 1 on which a pair of windings such as 2 and 3 are disposed, these windings being provided respectively with sets of contacts such as 4 and 5 with which switch members such as 6 and 7 are respectively adapted to engage. These switch members are mounted on an insulating strip or plug 8 in any suitable manner for pivotal movement thereon. These switch members are connected by links 9 and 10, respectively, to arms 11 and 12, the connection between these links and switch members or levers and arms being pivotal connections. The arm 12 is rigidly connected to the Iend of a sleeve 13. The arm l1 is rigidly connected to the end of a sleeve 14, which sleeve 14 is rotatable around the sleevel. The sleeve Iltis surrounded by a bushing sleeve 15 suitably clamped or disposed within an'aperture vin the panelboard or support 1691i the face of whichl a dial or other suitable indicating plate 17 is fastened. The frontend of sleeve 14 is provided with a pointer such as 18 as well as with clutch elefhents such as- 10 (see Fig. 3). A shaft 2t) is rotatable within the sleeve 1 3. On one end of this shaft a rotor member 21 (see Fig. 1) is mounted in a well knoiwn manner.l lThe other end ot this shaft is provided with a head l2 havingY on its rciar face clutch elements 23.

it. requires no more space 'on a` In view of thefact that. by being moved from one-` 6 5 operate any one of a, plurality.'l

than would be required. 0f .a

sob

longitudinal groove 26 which extends be-l tween the two transverse grooves. Around this portion of the sleeve a knob element 2T is disposed, this an indicator or 18 and 28 can be`disposedrelative to indicaticlswhich may be ined on the dial 17, so that the rela ive position Vof the pointeewith respetgr the`dial can be obg served at all Itin/lese- The inne face of the head of the/knob 27 is provided with a key Vor...pin 2g `projecting inwardly therefrom. The front-andrear faces of the knob are also provided. with clutch elements sach as 30 and 3l; The clutch elements 30 on this knob ward to en age with the clutch/elements 23 on the hea 22, whereby the/ rotation of the knob will effect the rotation of the .shaft 20 and thereby the rotation of the/rotor 21.

The clutch elements 31 on the rear face of the knob engage the clutch elements 19 on' the frontcend of sleeve 14 whenever the knob is moved to the rear, so that the sleew 14 can be rotated and thereby the arm 11 and the switch lever 6, which can, therefore, e adjusted over thetaps 4 of the coil 2.

knob beingprovided with It will be observed that in the cxtreme for of the key it will act with the ward and rear positions of the knob the pin or key 29, as theknob is rotated, will move in the transverseslots 24'and 25. whereas when the knob is inthe mid position. as

shown in Fig. 3, the ,key 29 will lie in the longitudinal groove 26,'and in this position sides of the roove 26 in the manner of a clutch, so that t e rotation of the knob will Aeffect thc rotation of the sleeve 13 and thereby the movement of the arm 12 and switch level' over the contacts 5 of the coil It will, therefore, be observed that ny sliding the single element or knob 2T forA ward or back to the extreme positions, or bv manipulating in thc intermediate position,

the actuation of three distinct elemcn'tsrasrsociated with thel coupler can be brought about. The knob and its co-operating,r shaft and sleeves occupy substantially no more space on the panelboard than would one shaft and its knob rigidly connected. ln this manner, therefore, of connections fromjhe various parte ot' the coil to. sets of contacts on the front of the ,panelboardfthe space of these contacts separately and the provision of them with separate switches and the soldering ol'all connections are entirely eliminated. The coil can be tapped and the contacts formed thereon in an entirely separate, independent operation before the coils and their shell are mounted on the set. It is obvious that the extreme etliciency and simplicity of this pomter 28. Th/ese pointers' cludes a shell, a coil Adisposed to be are adapted when the knob is slid forthe one knob.

by the establishment device and the on the panelboard, and the comparative ease with which the multiplicity of parts can be operated by one single element, make this device one which has great advantage over those now in use What I claim is:-

great'amount of space saved- 1. A radio coupler construction Ywhich in-- Y on said shell, a plural; ity of contacts on said shell connectin to difl'erent windings of said coil,l a switch 1 movable. over said contacts, aA rotor Iroved relative to said shell, a shaft on which saidrotor is mounted, a sleeve embracing said shaft, necting the sleeve with said switch member, a knob mounted on said shaft and slidable therealong, clutch members on said knob, and clutch' members on the sleeve and the shaft to be selectivelyengaged by the knob whereby the rotor and the switch member can be selectively and independently operated by 2:'A`radio coupler construction'yehiinf" cludes a shell, a coil onsaid/shll a plurality of contacts on -said shell connectin to different windings `of said coil, a. switch member movable over said contacts, a rotor disposed to be'n'noved relative to said shell, a shaft on which said rotor is mounted', a. sleeve embracing said shaft, a linkage connecting the sleeve with said switch member, a knob mounted on said shaft and slida linkage cony able therealong, clutch members on said knob, clutch members on the sleeve and the shaft to be selectively engaged by the knob vhereby the rotor and the switch member can be selectively and independently o erated by the one knob, a second coil on said shell, a second switch member movable over said coil, a second sleeveassociated wiih the shaft and said rst sleeve, linkage connecting said.seco'nd Sleeve with said second switch member, clutch elements on said second sleeve, and additional clutch elements on the knob tol engage with said second sleeve whereby can be selectively and independently' o erated to cause the selective and independent operation of the second switch member.

3. A radio coupler construction which includes a rotor, a shaft 0n which Said rotor is mounted, a plurality of switch members, a plurality of sleeves embracing said shaft and disposed for'relative rotation thereon and with respect to cach other,1ink

vknob with respect to the pendent and selective' rotation of either the shaft or one of said. plurality of sleeves at, the will of the manipulator.

4. A radio cou ler` construction which 5 comprises a rotor s aft extending through a panelboard2 a pair of sleeves embracing said shaft and lndependentl rotatable with respect to each other an 'said shaft, a knob slidableon one of said sleeves and around said shaft, clutch elements on said shaft and said sleeves, and Clutch elements on said knob whereby the longitudinal movement of the knob with respect to the shaft and sleeves will selectively and independently engage the clutch elements thereon with the clutch elements on the shaft o1l the Sleeves for the selective and inde vendent rotation thereof.

' C ARLES HERMANN. 

